https://www.clickondetroit.com/news/...-less-than-10/

From article:

On Monday, March 25, the Detroit Air Xpress -- also called DAX -- launched its daily service that will take passengers on a nonstop ride to and from the Detroit Metropolitan Wayne County Airport in Romulus. It’s the first public bus service to offer Detroiters a direct shuttle to the airport.

Between 3:30 a.m. and 11 p.m. each day, DAX will make 16 round trips to DTW from downtown.